The information in this document was created from the devices in a
specific lab environment. All of the devices used in this document started with
a cleared (default) configuration. If your network is live, make sure that you
understand the potential impact of any command.

Microsoft IIS error 0x80004005 (AFL) occurred
when attempting to use requested language [no].
This may indicate that the Cisco Unity server
does not have the requested language loaded.
Please see your Cisco Unity system administrator for more details.

This issue can be caused when the host PC's browser requests a language
that is not installed in the Cisco Unity server.

Log in to the Cisco Unity server and open the browser (for example,
Internet Explorer).

Navigate to View >
Encoding.

Select the requested language.

This action will prompt you to install the language. In order to
install the language, you will need to insert the Windows OS installation CD
for Unity.

Note: You can also try accessing the SA web page on a different PC using
the same account. You can do this in order to check if this is a permissions
issue or a local PC issue.

Note: If the issue could not be resolved by performing these steps, set the
language for the client PC to the language used in the Cisco Unity server. In
order to do this, perform the procedure in the Set
language for the Client's PC section.

After a user logs into Cisco Unity and presses the
Messages link in the navigation pane, a blank page
appears.

Or

After a change has been made to the password on the account that Cisco
Unity Message Store Services log on as (typically UnityMsgStoreSvc), Cisco
Unity may display a DCOM error and fail to display the Alternate Extensions
page for subscribers when administrators attempt to browse to this page in the
Cisco Unity Administrator. When you access the alternate extension or messages
page, this error is generated in the system event log:

This error appears when a user tries to add new subscribers to Cisco
Unity:

Lookup of default Mailbox Home Server failed.
This may indicate that the default mailstore value in
Unity is not configured correctly.
If changes were made to the Exchange server, the Unity
Message Store Configuration Wizard
may need to be re-run.
Please see your Cisco Unity system administrator for more details.

When a user tries to use Microsoft Office Outlook Web Access or view a
webpage that is hosted on the server, the user receives this error
message:

The page cannot be displayed. The page you are looking for is currently
unavailable. The Web site might be experiencing technical difficulties, or you
may need to adjust your browser settings. Cannot find server or DNS Error.

OR

When you view the Httperr.log file, you see multiple occurrences of
entries that resemble
Number_Connections_refused.

This issue occurs if less than 20 megabytes (MB) of nonpaged pool
memory is available on the server. When less than 20 MB of nonpaged pool memory
is available, the Http.sys kernel mode driver stops accepting new connections.
In order to resolve this issue, add the
EnableAggressiveMemoryUsage registry entry to the
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\HTTP\Parameters
registry subkey. Then, set the EnableAggressiveMemoryUsage
registry entry to 1.